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Acekool heat pumps: how do their ratings compare?

A typical Acekool heat pump beats 36% of similar heat pumps (same size and type), which is well below average. Acekool has 13 heat pump models in this list.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Overall score

36%

of similar heat pumps beaten by its typical model

Well below average

Acekool has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 13 models with every rating.

Acekool, rating by ratingStrongest on summer-long cooling efficiency (beats 46%), weakest on efficiency on a 5°f day (beats 21%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 21%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 39%
  • Winter-long heating efficiencyHSPF2Beats 32%
  • Summer-long cooling efficiencySEER2Beats 46%
  • Hot-day cooling efficiencyEER2Beats 38%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want Acekool’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 85%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    11 models. All brands: 48%.

    See them

  • 62%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    8 models. All brands: 38%.

    See them

  • 0%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    None of its models yet. All brands: 1%.

Acekool all-around best, by size

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

10 of Acekool’s 10 models of this size and type have all five ratings.

  1. 1CMS9-2 PROwith ductless indoor unit CMS9-2 PROAcekool1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 45.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.2 (HSPF2)
    Good
    Cooling efficiency
    23.5 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Good
    60.6score / 100Heating 46 · Cooling 75
  2. 2CMS12-2 PROwith ductless indoor unit CMS12-2 PROAcekool1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 47.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Good
    60.2score / 100Heating 48 · Cooling 73
  3. 3CMS9 PROwith ductless indoor unit CMS9 PROAcekool1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 39.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Below the middle
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Below the middle
    51.3score / 100Heating 40 · Cooling 63
  4. 4CMS12 PROwith ductless indoor unit CMS12 PROAcekool1.5 tons · 18,000 Btu/h · DuctlessNot a cold-climate pick: keeps 66% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    66% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Below the middle
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    13.0 (EER2)
    Good
    48.2score / 100Heating 30 · Cooling 67
  5. 5CMS18 PROwith ductless indoor unit CMS18 PROAcekool1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 39.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    73% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Below the middle
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Below the middle
    47.9score / 100Heating 39 · Cooling 57

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has Acekool’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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